Automatic door anti-collision device

By designing an automatic door anti-collision device, using the cooperation of the damper and spring, the force of the automatic door when it is hit is buffered, the problem of damage caused by the lack of protective mechanism of the existing automatic door is solved, and a higher protective effect is achieved.

CN222797399UActive Publication Date: 2025-04-25NANJING FELLER AUTOMATIC DOOR MFG CO LTD
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Patent Information

Application Number
CN202421508457.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2025-04-25
Estimated Expiration
2034-06-28

AI Technical Summary

Technical Problem

The existing automatic door lacks a protective mechanism and is prone to damage when impacted.

Method used

An automatic door collision prevention device is designed, including a first frame, a second frame, a door panel, a protective plate, a damper and a spring. Through the combination of dampers and springs, when the guard plate is hit, the second slider will be moved through the connecting rod, squeezing the spring and dampers generate damping force, cushioning the guard plate and preventing damage to the automatic door.

Benefits of technology

Effectively buffer the impact force, prevent damage to the automatic door and improve the protective effect of the automatic door. Through multiple squeezing of the damper and the spring, the damping force is increased, further improving the protection effect.

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Abstract

The utility model discloses an automatic door anti-collision device which comprises a first frame, two second frames are arranged in the first frame, a driving assembly enabling the two second frames to horizontally move in the first frame is arranged in the first frame, door plates are fixedly connected in the two second frames, and the door plates are fixedly connected in the first frame. Protective plates are arranged on the two sides of the door plate, guide parts enabling the protective plates to move horizontally are arranged between the door plate and the protective plates, and two sliding grooves horizontally penetrating through the door plate are formed in one side of the door plate. The automatic door protection device can protect the automatic door, prevent the automatic door from being damaged by the impact acting force, improve the protection effect of the automatic door, reduce the acting force borne by the automatic door, further improve the protection effect of the automatic door, reduce the acting force borne by the protection plate when the protection plate is impacted, and improve the protection effect of the automatic door. And the protection effect of the automatic door is further improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of automatic doors, in particular to an automatic door anti-collision device. Background Art

[0002] Theoretically, automatic doors should be an extension of the concept of doors. They can recognize the action of people approaching the door as a control unit that signals the door to open, thereby realizing automatic opening and closing of the door.

[0003] After searching, a Chinese patent with publication number CN210918786U discloses a fireproof automatic door, including an automatic door body, a moving mechanism and a fireproof mechanism. The automatic door body includes absorbent cotton and a handle covering the automatic door body, which has a double fireproof effect. The automatic door is provided with a handle. When the automatic door cannot be opened due to a malfunction, the handle can be used to force the automatic door open to escape. However, the following defects still exist: there is a lack of a protective mechanism, which makes the automatic door easily damaged when it is hit. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an automatic door anti-collision device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An automatic door anti-collision device comprises a first frame, two second frames are arranged in the first frame, a driving assembly is arranged in the first frame to enable the two second frames to move horizontally in the first frame, door panels are fixedly connected in the two second frames, protective plates are arranged on both sides of the door panels, a guiding component is arranged between the door panels and the protective plates to enable the protective plates to move horizontally, two sliding grooves are opened on one side of the door panel and horizontally penetrate the door panel, a first slider and a second slider are slidably connected in the two sliding grooves, a damper is fixedly connected between adjacent first and second sliders, a spring fixed to the first slider and the second slider is arranged on the outer side of the damper, connecting rods are rotatably connected to both sides of the second slider, and the connecting rods are rotatably connected to the protective plates, and a pushing component is arranged on one side of the protective plate to enable the first slider and the second slider to move toward each other.

[0007] As a further solution of the utility model, the driving assembly includes a motor, which is fixedly connected to an outer wall of one side of the first frame, a sensor is provided on one side of the first frame, and the sensor is electrically connected to the motor, a bidirectional threaded rod is rotatably connected to the top position in the first frame, and the bidirectional threaded rod passes through two second frames and is threadedly connected to the two second frames, one end of the motor output shaft passes through the first frame and is fixed to the bidirectional threaded rod, and a guide component is provided in the first frame to enable the two second frames to move horizontally.

[0008] As a further solution of the utility model, the guiding component includes a guide rod, the guide rod is fixedly connected in the first frame, the guide rod is flush with the bidirectional threaded rod, and the guide rod passes through the two second frames.

[0009] As a further solution of the utility model, the guide component includes a plurality of sliding holes, and the plurality of sliding holes are respectively opened on both sides of the door panel, and the sliding holes on both sides are staggered. The adjacent sides of the two protective plates are fixedly connected with a plurality of positioning columns, and the positioning columns are slidably connected to the sliding holes.

[0010] As a further solution of the utility model, the pushing component includes a plurality of wedge blocks, and the plurality of wedge blocks are respectively fixedly connected to one side adjacent to the two protective plates, and the wedge blocks extend into the slide groove.

[0011] As a further solution of the utility model, a telescopic rod is fixedly connected to one side of the second sliding block, and the telescopic rod is fixed to the sliding groove, so that the second sliding block can move vertically.

[0012] As a further solution of the utility model, natural rubber plates are fixedly connected to one side of the two protection plates in opposite directions.

[0013] As a further solution of the utility model, a plurality of grooves are provided on the inner wall of the bottom of the first frame, and balls are provided in each of the plurality of grooves to enable the second frame to move smoothly.

[0014] The beneficial effects of the utility model are:

[0015] 1. Through the coordinated use of the damper and the spring, when the protective plate is hit, it will squeeze the protective plate to move, and the protective plate will push the second slider to move through the connecting rod. The second slider will squeeze the spring and the damper to generate a damping force. The damping force converts the kinetic energy of the object into heat energy or other forms of energy dissipation, thereby buffering the protective plate and protecting the automatic door, preventing the automatic door from being damaged by the force of the impact, thereby improving the protection effect of the automatic door.

[0016] 2. Through the setting of the pushing component, when the protective plate moves, it will push the first slider to move through the pushing component, so that the first slider and the second slider move toward each other, thereby squeezing the spring and the damper again, increasing the damping force, improving the buffering effect of the protective plate, reducing the force applied to the automatic door, and further improving the protective effect of the automatic door.

[0017] 3. Through the setting of the natural rubber plate, the natural rubber plate itself has good elasticity and buffering performance, which can reduce the force applied to the protective plate when it collides, thus once again improving the protective effect of the automatic door. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the bottom three-dimensional structure of an automatic door anti-collision device proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the upper three-dimensional structure of an automatic door anti-collision device proposed by the utility model;

[0020] Figure 3 This is a schematic cross-sectional structure diagram of a second frame of an automatic door anti-collision device proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of the enlarged structure of part A of an automatic door anti-collision device proposed by the utility model.

[0022] In the figure: 1. bidirectional threaded rod; 2. guide rod; 3. first frame; 4. second frame; 5. ball bearing; 6. slide groove; 7. door panel; 8. positioning column; 9. protective plate; 10. natural rubber plate; 11. wedge block; 12. first slider; 13. spring; 14. telescopic rod; 15. connecting rod; 16. second slider; 17. damper. DETAILED DESCRIPTION

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, so that the embodiments of the application described here, based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application.

[0024] Reference Figure 1-Figure 3, an automatic door anti-collision device, comprising a first frame 3, two second frames 4 are arranged in the first frame 3, a driving assembly is arranged in the first frame 3 to enable the two second frames 4 to move horizontally in the first frame 3, door panels 7 are fixed in the two second frames 4 by bolts, protective plates 9 are arranged on both sides of the door panels 7, and a guide component is arranged between the door panels 7 and the protective plates 9 to enable the protective plates 9 to move horizontally, two slide grooves 6 are opened on one side of the door panels 7 to horizontally penetrate the door panels 7, a first slider 12 and a second slider 16 are slidably connected in the two slide grooves 6, a damper 17 is fixed between adjacent first sliders 12 and second sliders 16 by bolts, a spring 13 fixed to the first slider 12 and the second slider 16 is arranged on the outer side of the damper 17, connecting rods 15 are rotatably connected on both sides of the second slider 16, and the connecting rod 15 is rotatably connected to the protective plates 9, and a pushing component is arranged on one side of the protective plates 9 to enable the first slider 12 and the second slider 16 to move toward each other. When being hit When the vehicle is hit, the force generated by the impact will push the protective plate 9 to move under the action of the guide component, and the protective plate 9 will push the second slider 16 to move along the slide groove 6 through the connecting rod 15, and cause the connecting rod 15 and the protective plate 9 and the second slider 16 to rotate. The second slider 16 will squeeze the spring 13 and the damper 17 during the movement, thereby generating a damping force, which converts kinetic energy into heat energy or other forms of energy dissipation, thereby buffering the protective plate 9 and protecting the automatic door, preventing the automatic door from being damaged by the force of the impact, thereby improving the protective effect of the automatic door. At the same time, the protective plate 9 will push the first slider 12 to move along the slide groove 6 through the pushing component, and the first slider 12 will move toward the second slider 16, so that the first slider 12 will squeeze the spring 13 and the damper 17 again, increasing the damping force, improving the buffering effect of the protective plate 9, reducing the force applied to the automatic door, and further improving the protective effect of the automatic door.

[0025] In the utility model, the driving assembly includes a motor, which is fixed to the outer wall of one side of the first frame 3 by bolts. A sensor is provided on one side of the first frame 3, and the sensor is electrically connected to the motor. A bidirectional threaded rod 1 is rotatably connected to the top position in the first frame 3, and the bidirectional threaded rod 1 passes through two second frames 4 and is threadedly connected to the two second frames 4. One end of the motor output shaft passes through the first frame 3 and is fixed to the bidirectional threaded rod 1. A guiding component is provided in the first frame 3 to enable the two second frames 4 to move horizontally. When the sensor senses a person, the motor is started, and the motor drives the bidirectional threaded rod 1 The two-way threaded rod 1 rotates, and the two second frames 4 move in opposite directions. The second frames 4 drive the door panel 7 to move, thereby opening the door panel 7. When the sensor senses that a person has passed through the first frame 3, the motor is started to reverse, thereby closing the door panel 7. The guide component includes a guide rod 2, which is fixed in the first frame 3 by bolts, and the guide rod 2 is flush with the two-way threaded rod 1. The guide rod 2 passes through the two second frames 4, and the second frames 4 move horizontally along the axial direction of the guide rod 2. The guide component includes a plurality of sliding holes, and the plurality of sliding holes are respectively opened on both sides of the door panel 7, and the sliding holes on both sides The protective plates 9 are staggered, and a plurality of positioning posts 8 are welded on one side adjacent to the two protective plates 9, and the positioning posts 8 are slidably connected to the sliding holes. When the protective plates 9 move, they will push the positioning posts 8 to move into the sliding holes. The protective plates 9 will move horizontally under the action of the positioning posts 8. The pushing components include a plurality of wedge blocks 11, which are respectively fixed to one side adjacent to the two protective plates 9 by bolts, and the wedge blocks 11 extend into the slide groove 6 and contact the first slider 12. The protective plates 9 will drive the wedge blocks 11 to move, and the wedge blocks 11 will push the first slider 12 to move along the slide groove 6 through their own inclined surfaces, and the second slider 12 will move horizontally. A telescopic rod 14 is fixed to one side of the block 16 by bolts, and the telescopic rod 14 is fixed to the slide groove 6, so that the second slider 16 can move vertically. The second slider 16 will stretch the telescopic rod 14 when moving. Natural rubber sheets 10 are bonded to the opposite sides of the two protective plates 9. The natural rubber sheets 10 themselves have good elasticity and buffering properties, which can reduce the force applied to the protective plates 9 when they collide. A plurality of grooves are provided on the bottom inner wall of the first frame 3, and balls 5 are provided in the plurality of grooves, so that the second frame 4 can move smoothly. The balls 5 can reduce the friction applied to the second frame 4 when it moves.

[0026] Working principle: when impacted, the force generated by the impact will push the protective plate 9 to move horizontally under the action of the positioning column 8, and the protective plate 9 will push the second slider 16 to move along the slide groove 6 through the connecting rod 15, and cause the connecting rod 15 and the protective plate 9 and the second slider 16 to rotate. The second slider 16 will squeeze the spring 13 and the damper 17 during the movement, thereby generating a damping force, which converts kinetic energy into heat energy or other forms of energy dissipation, thereby buffering the protective plate 9 and protecting the automatic door, preventing the automatic door from being damaged by the force of the impact, thereby improving the protective effect of the automatic door. At the same time, the protective plate 9 will drive the wedge block 11 to move, and the wedge block 11 will push the first slider 12 to move along the slide groove 6 through its own inclined surface, and the first slider 12 will move toward the second slider 16, so that the first slider 12 will squeeze the spring 13 and the damper 17 again, increasing the damping force, improving the buffering effect of the protective plate 9, reducing the force applied to the automatic door, and further improving the protective effect of the automatic door.

[0027] The present invention has been described through the above-mentioned embodiments. Those skilled in the art will appreciate that the present invention is not limited to the above-mentioned embodiments, and more modifications may be made according to the teachings of the present invention. These modifications are all within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic door anti-collision device, comprising a first frame (3), characterized in that: Two second frames (4) are arranged in the first frame (3), a driving assembly is arranged in the first frame (3) for enabling the two second frames (4) to move horizontally in the first frame (3), door panels (7) are fixedly connected in the two second frames (4), protective plates (9) are arranged on both sides of the door panels (7), a guide component for enabling the protective plates (9) to move horizontally is arranged between the door panels (7) and the protective plates (9), two slide grooves (6) are arranged on one side of the door panels (7) and penetrate the door panels (7) horizontally, and the two slide grooves (6) are provided with a guide component for enabling the protective plates (9) to move horizontally. A first slider (12) and a second slider (16) are rotatably connected, a damper (17) is fixedly connected between the adjacent first sliders (12) and second sliders (16), a spring (13) fixed to the first slider (12) and the second slider (16) is provided on the outer side of the damper (17), both sides of the second slider (16) are rotatably connected to connecting rods (15), and the connecting rods (15) are rotatably connected to the protective plate (9), and a pushing component is provided on one side of the protective plate (9) to enable the first slider (12) and the second slider (16) to move toward each other.

2. The automatic door anti-collision device according to claim 1, characterized in that: The driving assembly comprises a motor, the motor is fixedly connected to an outer wall of one side of a first frame (3), a sensor is provided on one side of the first frame (3), and the sensor is electrically connected to the motor, a bidirectional threaded rod (1) is rotatably connected at a top position in the first frame (3), and the bidirectional threaded rod (1) passes through two second frames (4) and is threadedly connected to the two second frames (4), one end of the motor output shaft passes through the first frame (3) and is fixed to the bidirectional threaded rod (1), and a guiding component is provided in the first frame (3) for enabling the two second frames (4) to move horizontally.

3. The automatic door anti-collision device according to claim 2, characterized in that: The guiding component comprises a guide rod (2), the guide rod (2) is fixedly connected in the first frame (3), the guide rod (2) is flush with the bidirectional threaded rod (1), and the guide rod (2) passes through two second frames (4).

4. The automatic door anti-collision device according to claim 1, characterized in that: The guide component comprises a plurality of sliding holes, the plurality of sliding holes are respectively opened on both sides of the door panel (7), and the sliding holes on both sides are staggeredly distributed, and the adjacent sides of the two protection plates (9) are fixedly connected with a plurality of positioning columns (8), and the positioning columns (8) are slidably connected to the sliding holes.

5. The automatic door anti-collision device according to claim 1, characterized in that: The pushing component comprises a plurality of wedge blocks (11), wherein the plurality of wedge blocks (11) are respectively fixedly connected to adjacent sides of two protective plates (9), and the wedge blocks (11) extend into the slide groove (6).

6. The automatic door anti-collision device according to claim 1, characterized in that: A telescopic rod (14) is fixedly connected to one side of the second sliding block (16), and the telescopic rod (14) is fixed to the sliding groove (6), so that the second sliding block (16) can move vertically.

7. The automatic door anti-collision device according to claim 5, characterized in that: One side of the two protection plates (9) in opposite directions is fixedly connected with a natural rubber plate (10).

8. The automatic door anti-collision device according to claim 2, characterized in that: The bottom inner wall of the first frame (3) is provided with a plurality of grooves, and each of the plurality of grooves is provided with a ball (5) to enable the second frame (4) to move smoothly.

Citation Information

Patent Citations

  • Fireproof automatic door

    CN210918786U